commit | a3b7eb088362eae99f396717930c1f0bf61a19a2 | [log] [tgz] |
---|---|---|
author | Aaron Wood <aaronwood@google.com> | Thu Jun 04 23:10:12 2020 -0700 |
committer | Commit Bot <commit-bot@chromium.org> | Fri Jun 12 03:53:54 2020 +0000 |
tree | 1fd50cd7514fd386a48569dbce1da2cb968910b4 | |
parent | 92116c5af6d9845b6337d52b001a148c92f62418 [diff] |
[rust-project.json] Refactor and print each crate source root The source root for each crate is now required by rust analyzer. This change refactors the RustProjectJsonWriter to work in two phases: 1) generate the full list of crates (with dependencies and cfgs) 2) write out that list of crates to the output stream This also normalizes the output of the sysroot crates to use the same json writing code as the rest of the crates (but sysroot crates are still added to the crate list in a special manner). Change-Id: I4b78ecf5444edf538b2c20088ca83372054e2098 Reviewed-on: https://gn-review.googlesource.com/c/gn/+/8720 Commit-Queue: Aaron Wood <aaronwood@google.com> Reviewed-by: Petr Hosek <phosek@google.com> Reviewed-by: Tyler Mandry <tmandry@google.com>
GN is a meta-build system that generates build files for Ninja.
Related resources:
You can download the latest version of GN binary for Linux, macOS and Windows.
Alternatively, you can build GN from source:
git clone https://gn.googlesource.com/gn cd gn python build/gen.py ninja -C out # To run tests: out/gn_unittests
On Windows, it is expected that cl.exe
, link.exe
, and lib.exe
can be found in PATH
, so you'll want to run from a Visual Studio command prompt, or similar.
On Linux and Mac, the default compiler is clang++
, a recent version is expected to be found in PATH
. This can be overridden by setting CC
, CXX
, and AR
.
There is a simple example in examples/simple_build directory that is a good place to get started with the minimal configuration.
To build and run the simple example with the default gcc compiler:
cd examples/simple_build ../../out/gn gen -C out ninja -C out ./out/hello
For a maximal configuration see the Chromium setup:
and the Fuchsia setup:
If you find a bug, you can see if it is known or report it in the bug database.
GN uses Gerrit for code review. The short version of how to patch is:
Register at https://gn-review.googlesource.com. ... edit code ... ninja -C out && out/gn_unittests
Then, to upload a change for review:
git commit git push origin HEAD:refs/for/master
The first time you do this you'll get an error from the server about a missing change-ID. Follow the directions in the error message to install the change-ID hook and run git commit --amend
to apply the hook to the current commit.
When revising a change, use:
git commit --amend git push origin HEAD:refs/for/master
which will add the new changes to the existing code review, rather than creating a new one.
We ask that all contributors sign Google's Contributor License Agreement (either individual or corporate as appropriate, select ‘any other Google project’).
You may ask questions and follow along with GN‘s development on Chromium’s gn-dev@ Google Group.